EP3315817A4 - Worm speed reducer - Google Patents

Worm speed reducer Download PDF

Info

Publication number
EP3315817A4
EP3315817A4 EP16817503.2A EP16817503A EP3315817A4 EP 3315817 A4 EP3315817 A4 EP 3315817A4 EP 16817503 A EP16817503 A EP 16817503A EP 3315817 A4 EP3315817 A4 EP 3315817A4
Authority
EP
European Patent Office
Prior art keywords
speed reducer
worm speed
worm
reducer
speed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16817503.2A
Other languages
German (de)
French (fr)
Other versions
EP3315817A1 (en
Inventor
Toru Segawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NSK Ltd
Original Assignee
NSK Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NSK Ltd filed Critical NSK Ltd
Publication of EP3315817A1 publication Critical patent/EP3315817A1/en
Publication of EP3315817A4 publication Critical patent/EP3315817A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H57/022—Adjustment of gear shafts or bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0409—Electric motor acting on the steering column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06—Ball or roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
    • F16H55/24—Special devices for taking up backlash
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H2057/0213—Support of worm gear shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
    • F16H2057/126—Self-adjusting during operation, e.g. by a spring
    • F16H2057/127—Self-adjusting during operation, e.g. by a spring using springs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Gear Transmission (AREA)
  • Power Steering Mechanism (AREA)
  • Gears, Cams (AREA)
EP16817503.2A 2015-06-29 2016-02-24 Worm speed reducer Withdrawn EP3315817A4 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2015130136 2015-06-29
JP2015156671 2015-08-07
JP2015216238 2015-11-04
JP2015216239 2015-11-04
JP2015216240 2015-11-04
JP2015245532 2015-12-16
JP2016018456 2016-02-03
PCT/JP2016/055534 WO2017002393A1 (en) 2015-06-29 2016-02-24 Worm speed reducer

Publications (2)

Publication Number Publication Date
EP3315817A1 EP3315817A1 (en) 2018-05-02
EP3315817A4 true EP3315817A4 (en) 2018-07-25

Family

ID=57608022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16817503.2A Withdrawn EP3315817A4 (en) 2015-06-29 2016-02-24 Worm speed reducer

Country Status (5)

Country Link
US (1) US10584787B2 (en)
EP (1) EP3315817A4 (en)
JP (1) JP6414333B2 (en)
CN (1) CN107614928B (en)
WO (1) WO2017002393A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016038927A1 (en) * 2014-09-08 2016-03-17 日本精工株式会社 Electrically driven power steering device
JP2017109599A (en) * 2015-12-16 2017-06-22 ナブテスコ株式会社 Steering auxiliary device
JP6875963B2 (en) * 2017-08-31 2021-05-26 Ｋｙｂ株式会社 Power steering device
JP6875962B2 (en) * 2017-08-31 2021-05-26 Ｋｙｂ株式会社 Power steering device
DE102018124139A1 (en) * 2018-09-28 2020-04-02 Thyssenkrupp Ag Bearing device, reduction gear, electromechanical power steering and method for connecting a drive element of an electromechanical power steering to a bearing device
DE102018124143A1 (en) * 2018-09-28 2020-04-02 Thyssenkrupp Ag Bearing device, adjusting device, adjustable steering column, method for producing an adjusting device
JP7225877B2 (en) * 2019-02-12 2023-02-21 日本精工株式会社 Worm reducer and electric assist device
CN113423960B (en) * 2019-02-12 2023-02-17 日本精工株式会社 Worm gear reducer and electric assist device
JP7404688B2 (en) * 2019-07-19 2023-12-26 日本精工株式会社 Worm reducer and electric assist device
DE102019118673A1 (en) * 2019-07-10 2021-01-14 Thyssenkrupp Ag Electromechanical power steering with swivel pendulum bearing arrangement
US11608111B2 (en) * 2020-09-04 2023-03-21 R.H. Sheppard Co. Inc. End of travel relief system for power steering system
CN114435462B (en) * 2020-11-05 2024-05-24 操纵技术Ip控股公司 Linear worm and worm gear assembly
DE102021208537B3 (en) 2021-08-05 2022-10-13 Volkswagen Aktiengesellschaft Transmission unit, vehicle seat drive, vehicle seat
JP2023104054A (en) * 2022-01-17 2023-07-28 日本精工株式会社 Gear housing and power-assisting device
CN114458735B (en) * 2022-04-12 2022-07-12 深圳市雅力士电机有限公司 Self-locking mechanism of worm
WO2023211768A1 (en) * 2022-04-26 2023-11-02 Nsk Americas, Inc. Single radial wedge for steering column tube to housing de-lash

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110067946A1 (en) * 2009-09-24 2011-03-24 Mando Corporation Reducer of electric power steering apparatus

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3941215C2 (en) * 1989-12-14 1995-07-20 Keiper Recaro Gmbh Co Backrest adjustment fitting for seats, in particular motor vehicle seats
AU2002349690A1 (en) * 2001-12-03 2003-06-17 Nsk Ltd. Electric power steering device
CN100519300C (en) * 2003-02-20 2009-07-29 日本精工株式会社 Electric-powered power steering apparatus
JP4381024B2 (en) 2003-04-10 2009-12-09 日本精工株式会社 Assist device for electric power steering device and electric power steering device
US6886678B2 (en) * 2003-05-02 2005-05-03 Siemens Vdo Automotive Corporation Clutch assembly for electric motors to prevent back drive
JP4716679B2 (en) * 2003-06-25 2011-07-06 日本精工株式会社 Worm speed reducer and electric power steering device
US7878594B2 (en) * 2006-03-10 2011-02-01 Ntn Corporation Seat reclining device
CN200996436Y (en) * 2007-01-10 2007-12-26 李强 Turbine and vortex-rod reducer
DE102008054441B4 (en) * 2008-12-10 2015-06-18 Robert Bosch Automotive Steering Gmbh Swivel bearing for the shaft of a steering system
JP5514445B2 (en) * 2009-01-07 2014-06-04 Ｎｔｎ株式会社 Bearing bush for seat reclining device and seat reclining device
JP4866931B2 (en) * 2009-03-24 2012-02-01 日立オートモティブシステムズ株式会社 Power steering device
CN201428774Y (en) * 2009-04-30 2010-03-24 比亚迪股份有限公司 Worm wheel and worm device
JP5321565B2 (en) * 2010-11-17 2013-10-23 日本精工株式会社 Electric power steering device
FR2972514B1 (en) * 2011-03-09 2013-09-06 Skf Ab WEAR COMPENSATION DEVICE FOR GEAR.
JP2013087868A (en) * 2011-10-18 2013-05-13 Jtekt Corp Electric power steering device
FR2989756B1 (en) * 2012-04-23 2014-05-16 Skf Ab WEAR COMPENSATION DEVICE FOR GEAR COMPRISING AXIAL RETENTION MEANS.
JP6118603B2 (en) * 2013-03-25 2017-04-19 株式会社ショーワ Gear preload structure and electric power steering device
JP6428782B2 (en) * 2014-09-26 2018-11-28 日本精工株式会社 Electric power steering device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110067946A1 (en) * 2009-09-24 2011-03-24 Mando Corporation Reducer of electric power steering apparatus

Also Published As

Publication number Publication date
EP3315817A1 (en) 2018-05-02
CN107614928A (en) 2018-01-19
WO2017002393A1 (en) 2017-01-05
CN107614928B (en) 2020-03-27
JP6414333B2 (en) 2018-10-31
US20180156325A1 (en) 2018-06-07
JPWO2017002393A1 (en) 2018-04-05
US10584787B2 (en) 2020-03-10

Similar Documents

Publication Publication Date Title
EP3315817A4 (en) Worm speed reducer
EP3404293A4 (en) Speed-switchable reduction gear
EP3221746A4 (en) Selfie apparatus
EP3150861A4 (en) Hydraulic apparatus
EP3315791A4 (en) Hydraulic apparatus
EP3279506A4 (en) Worm gear reducer
EP3273072A4 (en) Construction apparatus
EP3244069A4 (en) Construction apparatus
EP3272305A4 (en) Workpiece unit
EP3161610A4 (en) Optimized browser rendering process
EP3190027A4 (en) Steering apparatus
EP3489545A4 (en) Worm gear reducer
EP3306134A4 (en) Reduction gear
EP3257149A4 (en) Oscillating-resonant-module controller
EP3075628A4 (en) Steering apparatus
EP3161662A4 (en) Optimized browser render process
EP3495687A4 (en) Worm gear reducer
EP3176482A4 (en) Speed controller
EP3162657A4 (en) Steering apparatus
EP3391990A4 (en) Production line
EP3279514A4 (en) High-strength gear
EP3275812A4 (en) Passage forming apparatus
EP3288473A4 (en) Rod reducer
EP3395694A4 (en) Box-packing apparatus
EP3168225A4 (en) Fidaxomicin purification method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20171201

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

A4 Supplementary search report drawn up and despatched

Effective date: 20180622

RIC1 Information provided on ipc code assigned before grant

Ipc: F16C 23/06 20060101ALI20180618BHEP

Ipc: F16H 1/16 20060101AFI20180618BHEP

Ipc: F16H 55/24 20060101ALI20180618BHEP

Ipc: B62D 5/04 20060101ALI20180618BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20200205

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20200616